I think Liverpool will win the title again. They have a strong squad and I believe they can do it.
It isn't so hard to predict that at this point. Look at the point gap above all else. It is 13 points now.
Arsenal have already given up on their target obviously. The recent injuries hit them very hard. They can't even score a goal for 2 weeks. This is very serious.
Arteta desperately tries to defend his team on the 0-0 draw against Forest. He says Liverpool collected less amount of points against them compared to Arsenal. He says this shows who is better. But deep down he also knows Liverpool are the best by far now.
The 0-0 draw against Forest isn‘t the biggest problem. Don‘t forget that Liverpool lost against Forest at home. As you mentioned the injuries were too much because I think at one point they had to substitute most of their offensive players except for Havertz I think. That was too much for them whereas Liverpool had everyone available most of the time. But again Liverpool immediately punished any inconsistency from those other teams and it became obvious very quickly when Manchester City began to have their crisis that it is either Arsenal playing an outstanding season or no other team would ever have a chance against this years Liverpool.